19-Year-Old College Athlete With a 6-Month History of Shortness of Breath Under Asthma Management*

Role of FeNO

Had FeNO been measured at the onset of this patient’s dyspneic symptoms, the symptoms may not have been attributed to a pulmonary inflammatory process. She possibly could have then avoided unnecessary asthma medication trials, chest x-rays, and repeat pulmonary function tests.

Patient Background

Reported shallow breathing and sensation of not having a full breath of air on a daily basis

No nocturnal symptoms

Became acutely short of breath, had perioral cyanosis, and lost consciousness while running on the treadmill for an endurance test 1 week prior to evaluation

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